Go to a bar with equations written on the wall?
Seriously though -- here is a starting point:
http://www.tripadvisor.com/Attractio...achusetts.html. Sam Adams brewery might be neat if you're into beer;
Regarding Red Sox tickets -- can't you just buy them on stubhub beforehand? Sure, it might cost more, but once you factor in flights and hotel, will it really matter at the end of the day?